Select all the correct answers.
a supermarket is testing brands of microwave popcorn. for each brand, they recorded the percentage of corn kernels in a package that popped in the recommended cooking time. let a be the data set of percentages listed below.

a = {91, 94, 89, 93, 87, 92, 86, 87, 92, 91}

the supermarket then realized they missed a brand. when the new brand was cooked, only 74% of its kernels popped.

let b be the data set of percentages for all 11 packages, including the package where the least kernels popped.

select the statements that are true.

including the percentage for the package where the least kernels popped causes the spread of the data to decrease.
the mean of a is the same as the mean of b.
including the percentage for the package where the least kernels popped causes the center of the data to increase.
the median of a is the same as the median of b.
the standard deviation of b is greater than the standard deviation of a.
the interquartile range of a is the same as the interquartile range of b.

the answer is vanilla

step-by-step explanation:

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

the answer is 48m^2!

step-by-step explanation:

18.75 gallons

step-by-step explanation: